1 /* -*- mode: c; c-basic-offset: 8; -*- 2 * vim: noexpandtab sw=8 ts=8 sts=0: 3 * 4 * journal.h 5 * 6 * Defines journalling api and structures. 7 * 8 * Copyright (C) 2003, 2005 Oracle. All rights reserved. 9 * 10 * This program is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU General Public 12 * License as published by the Free Software Foundation; either 13 * version 2 of the License, or (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 * General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public 21 * License along with this program; if not, write to the 22 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 23 * Boston, MA 021110-1307, USA. 24 */ 25 26 #ifndef OCFS2_JOURNAL_H 27 #define OCFS2_JOURNAL_H 28 29 #include <linux/fs.h> 30 #include <linux/jbd2.h> 31 32 enum ocfs2_journal_state { 33 OCFS2_JOURNAL_FREE = 0, 34 OCFS2_JOURNAL_LOADED, 35 OCFS2_JOURNAL_IN_SHUTDOWN, 36 }; 37 38 struct ocfs2_super; 39 struct ocfs2_dinode; 40 41 /* 42 * The recovery_list is a simple linked list of node numbers to recover. 43 * It is protected by the recovery_lock. 44 */ 45 46 struct ocfs2_recovery_map { 47 unsigned int rm_used; 48 unsigned int *rm_entries; 49 }; 50 51 52 struct ocfs2_journal { 53 enum ocfs2_journal_state j_state; /* Journals current state */ 54 55 journal_t *j_journal; /* The kernels journal type */ 56 struct inode *j_inode; /* Kernel inode pointing to 57 * this journal */ 58 struct ocfs2_super *j_osb; /* pointer to the super 59 * block for the node 60 * we're currently 61 * running on -- not 62 * necessarily the super 63 * block from the node 64 * which we usually run 65 * from (recovery, 66 * etc) */ 67 struct buffer_head *j_bh; /* Journal disk inode block */ 68 atomic_t j_num_trans; /* Number of transactions 69 * currently in the system. */ 70 unsigned long j_trans_id; 71 struct rw_semaphore j_trans_barrier; 72 wait_queue_head_t j_checkpointed; 73 74 spinlock_t j_lock; 75 struct list_head j_la_cleanups; 76 struct work_struct j_recovery_work; 77 }; 78 79 extern spinlock_t trans_inc_lock; 80 81 /* wrap j_trans_id so we never have it equal to zero. */ 82 static inline unsigned long ocfs2_inc_trans_id(struct ocfs2_journal *j) 83 { 84 unsigned long old_id; 85 spin_lock(&trans_inc_lock); 86 old_id = j->j_trans_id++; 87 if (unlikely(!j->j_trans_id)) 88 j->j_trans_id = 1; 89 spin_unlock(&trans_inc_lock); 90 return old_id; 91 } 92 93 static inline void ocfs2_set_inode_lock_trans(struct ocfs2_journal *journal, 94 struct inode *inode) 95 { 96 spin_lock(&trans_inc_lock); 97 OCFS2_I(inode)->ip_last_trans = journal->j_trans_id; 98 spin_unlock(&trans_inc_lock); 99 } 100 101 /* Used to figure out whether it's safe to drop a metadata lock on an 102 * inode. Returns true if all the inodes changes have been 103 * checkpointed to disk. You should be holding the spinlock on the 104 * metadata lock while calling this to be sure that nobody can take 105 * the lock and put it on another transaction. */ 106 static inline int ocfs2_inode_fully_checkpointed(struct inode *inode) 107 { 108 int ret; 109 struct ocfs2_journal *journal = OCFS2_SB(inode->i_sb)->journal; 110 111 spin_lock(&trans_inc_lock); 112 ret = time_after(journal->j_trans_id, OCFS2_I(inode)->ip_last_trans); 113 spin_unlock(&trans_inc_lock); 114 return ret; 115 } 116 117 /* convenience function to check if an inode is still new (has never 118 * hit disk) Will do you a favor and set created_trans = 0 when you've 119 * been checkpointed. returns '1' if the inode is still new. */ 120 static inline int ocfs2_inode_is_new(struct inode *inode) 121 { 122 int ret; 123 124 /* System files are never "new" as they're written out by 125 * mkfs. This helps us early during mount, before we have the 126 * journal open and j_trans_id could be junk. */ 127 if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_SYSTEM_FILE) 128 return 0; 129 spin_lock(&trans_inc_lock); 130 ret = !(time_after(OCFS2_SB(inode->i_sb)->journal->j_trans_id, 131 OCFS2_I(inode)->ip_created_trans)); 132 if (!ret) 133 OCFS2_I(inode)->ip_created_trans = 0; 134 spin_unlock(&trans_inc_lock); 135 return ret; 136 } 137 138 static inline void ocfs2_inode_set_new(struct ocfs2_super *osb, 139 struct inode *inode) 140 { 141 spin_lock(&trans_inc_lock); 142 OCFS2_I(inode)->ip_created_trans = osb->journal->j_trans_id; 143 spin_unlock(&trans_inc_lock); 144 } 145 146 /* Exported only for the journal struct init code in super.c. Do not call. */ 147 void ocfs2_orphan_scan_init(struct ocfs2_super *osb); 148 void ocfs2_orphan_scan_stop(struct ocfs2_super *osb); 149 void ocfs2_orphan_scan_exit(struct ocfs2_super *osb); 150 151 void ocfs2_complete_recovery(struct work_struct *work); 152 void ocfs2_wait_for_recovery(struct ocfs2_super *osb); 153 154 int ocfs2_recovery_init(struct ocfs2_super *osb); 155 void ocfs2_recovery_exit(struct ocfs2_super *osb); 156 157 int ocfs2_compute_replay_slots(struct ocfs2_super *osb); 158 /* 159 * Journal Control: 160 * Initialize, Load, Shutdown, Wipe a journal. 161 * 162 * ocfs2_journal_init - Initialize journal structures in the OSB. 163 * ocfs2_journal_load - Load the given journal off disk. Replay it if 164 * there's transactions still in there. 165 * ocfs2_journal_shutdown - Shutdown a journal, this will flush all 166 * uncommitted, uncheckpointed transactions. 167 * ocfs2_journal_wipe - Wipe transactions from a journal. Optionally 168 * zero out each block. 169 * ocfs2_recovery_thread - Perform recovery on a node. osb is our own osb. 170 * ocfs2_mark_dead_nodes - Start recovery on nodes we won't get a heartbeat 171 * event on. 172 * ocfs2_start_checkpoint - Kick the commit thread to do a checkpoint. 173 */ 174 void ocfs2_set_journal_params(struct ocfs2_super *osb); 175 int ocfs2_journal_init(struct ocfs2_journal *journal, 176 int *dirty); 177 void ocfs2_journal_shutdown(struct ocfs2_super *osb); 178 int ocfs2_journal_wipe(struct ocfs2_journal *journal, 179 int full); 180 int ocfs2_journal_load(struct ocfs2_journal *journal, int local, 181 int replayed); 182 int ocfs2_check_journals_nolocks(struct ocfs2_super *osb); 183 void ocfs2_recovery_thread(struct ocfs2_super *osb, 184 int node_num); 185 int ocfs2_mark_dead_nodes(struct ocfs2_super *osb); 186 void ocfs2_complete_mount_recovery(struct ocfs2_super *osb); 187 void ocfs2_complete_quota_recovery(struct ocfs2_super *osb); 188 189 static inline void ocfs2_start_checkpoint(struct ocfs2_super *osb) 190 { 191 atomic_set(&osb->needs_checkpoint, 1); 192 wake_up(&osb->checkpoint_event); 193 } 194 195 static inline void ocfs2_checkpoint_inode(struct inode *inode) 196 { 197 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); 198 199 if (ocfs2_mount_local(osb)) 200 return; 201 202 if (!ocfs2_inode_fully_checkpointed(inode)) { 203 /* WARNING: This only kicks off a single 204 * checkpoint. If someone races you and adds more 205 * metadata to the journal, you won't know, and will 206 * wind up waiting *alot* longer than necessary. Right 207 * now we only use this in clear_inode so that's 208 * OK. */ 209 ocfs2_start_checkpoint(osb); 210 211 wait_event(osb->journal->j_checkpointed, 212 ocfs2_inode_fully_checkpointed(inode)); 213 } 214 } 215 216 /* 217 * Transaction Handling: 218 * Manage the lifetime of a transaction handle. 219 * 220 * ocfs2_start_trans - Begin a transaction. Give it an upper estimate of 221 * the number of blocks that will be changed during 222 * this handle. 223 * ocfs2_commit_trans - Complete a handle. It might return -EIO if 224 * the journal was aborted. The majority of paths don't 225 * check the return value as an error there comes too 226 * late to do anything (and will be picked up in a 227 * later transaction). 228 * ocfs2_extend_trans - Extend a handle by nblocks credits. This may 229 * commit the handle to disk in the process, but will 230 * not release any locks taken during the transaction. 231 * ocfs2_journal_access* - Notify the handle that we want to journal this 232 * buffer. Will have to call ocfs2_journal_dirty once 233 * we've actually dirtied it. Type is one of . or . 234 * Always call the specific flavor of 235 * ocfs2_journal_access_*() unless you intend to 236 * manage the checksum by hand. 237 * ocfs2_journal_dirty - Mark a journalled buffer as having dirty data. 238 * ocfs2_jbd2_file_inode - Mark an inode so that its data goes out before 239 * the current handle commits. 240 */ 241 242 /* You must always start_trans with a number of buffs > 0, but it's 243 * perfectly legal to go through an entire transaction without having 244 * dirtied any buffers. */ 245 handle_t *ocfs2_start_trans(struct ocfs2_super *osb, 246 int max_buffs); 247 int ocfs2_commit_trans(struct ocfs2_super *osb, 248 handle_t *handle); 249 int ocfs2_extend_trans(handle_t *handle, int nblocks); 250 251 /* 252 * Create access is for when we get a newly created buffer and we're 253 * not gonna read it off disk, but rather fill it ourselves. Right 254 * now, we don't do anything special with this (it turns into a write 255 * request), but this is a good placeholder in case we do... 256 * 257 * Write access is for when we read a block off disk and are going to 258 * modify it. This way the journalling layer knows it may need to make 259 * a copy of that block (if it's part of another, uncommitted 260 * transaction) before we do so. 261 */ 262 #define OCFS2_JOURNAL_ACCESS_CREATE 0 263 #define OCFS2_JOURNAL_ACCESS_WRITE 1 264 #define OCFS2_JOURNAL_ACCESS_UNDO 2 265 266 267 /* ocfs2_inode */ 268 int ocfs2_journal_access_di(handle_t *handle, struct inode *inode, 269 struct buffer_head *bh, int type); 270 /* ocfs2_extent_block */ 271 int ocfs2_journal_access_eb(handle_t *handle, struct inode *inode, 272 struct buffer_head *bh, int type); 273 /* ocfs2_group_desc */ 274 int ocfs2_journal_access_gd(handle_t *handle, struct inode *inode, 275 struct buffer_head *bh, int type); 276 /* ocfs2_xattr_block */ 277 int ocfs2_journal_access_xb(handle_t *handle, struct inode *inode, 278 struct buffer_head *bh, int type); 279 /* quota blocks */ 280 int ocfs2_journal_access_dq(handle_t *handle, struct inode *inode, 281 struct buffer_head *bh, int type); 282 /* dirblock */ 283 int ocfs2_journal_access_db(handle_t *handle, struct inode *inode, 284 struct buffer_head *bh, int type); 285 /* ocfs2_dx_root_block */ 286 int ocfs2_journal_access_dr(handle_t *handle, struct inode *inode, 287 struct buffer_head *bh, int type); 288 /* ocfs2_dx_leaf */ 289 int ocfs2_journal_access_dl(handle_t *handle, struct inode *inode, 290 struct buffer_head *bh, int type); 291 /* Anything that has no ecc */ 292 int ocfs2_journal_access(handle_t *handle, struct inode *inode, 293 struct buffer_head *bh, int type); 294 295 /* 296 * A word about the journal_access/journal_dirty "dance". It is 297 * entirely legal to journal_access a buffer more than once (as long 298 * as the access type is the same -- I'm not sure what will happen if 299 * access type is different but this should never happen anyway) It is 300 * also legal to journal_dirty a buffer more than once. In fact, you 301 * can even journal_access a buffer after you've done a 302 * journal_access/journal_dirty pair. The only thing you cannot do 303 * however, is journal_dirty a buffer which you haven't yet passed to 304 * journal_access at least once. 305 * 306 * That said, 99% of the time this doesn't matter and this is what the 307 * path looks like: 308 * 309 * <read a bh> 310 * ocfs2_journal_access(handle, bh, OCFS2_JOURNAL_ACCESS_WRITE); 311 * <modify the bh> 312 * ocfs2_journal_dirty(handle, bh); 313 */ 314 int ocfs2_journal_dirty(handle_t *handle, 315 struct buffer_head *bh); 316 317 /* 318 * Credit Macros: 319 * Convenience macros to calculate number of credits needed. 320 * 321 * For convenience sake, I have a set of macros here which calculate 322 * the *maximum* number of sectors which will be changed for various 323 * metadata updates. 324 */ 325 326 /* simple file updates like chmod, etc. */ 327 #define OCFS2_INODE_UPDATE_CREDITS 1 328 329 /* extended attribute block update */ 330 #define OCFS2_XATTR_BLOCK_UPDATE_CREDITS 1 331 332 /* global quotafile inode update, data block */ 333 #define OCFS2_QINFO_WRITE_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1) 334 335 /* 336 * The two writes below can accidentally see global info dirty due 337 * to set_info() quotactl so make them prepared for the writes. 338 */ 339 /* quota data block, global info */ 340 /* Write to local quota file */ 341 #define OCFS2_QWRITE_CREDITS (OCFS2_QINFO_WRITE_CREDITS + 1) 342 343 /* global quota data block, local quota data block, global quota inode, 344 * global quota info */ 345 #define OCFS2_QSYNC_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 3) 346 347 static inline int ocfs2_quota_trans_credits(struct super_block *sb) 348 { 349 int credits = 0; 350 351 if (OCFS2_HAS_RO_COMPAT_FEATURE(sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) 352 credits += OCFS2_QWRITE_CREDITS; 353 if (OCFS2_HAS_RO_COMPAT_FEATURE(sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) 354 credits += OCFS2_QWRITE_CREDITS; 355 return credits; 356 } 357 358 /* Number of credits needed for removing quota structure from file */ 359 int ocfs2_calc_qdel_credits(struct super_block *sb, int type); 360 /* Number of credits needed for initialization of new quota structure */ 361 int ocfs2_calc_qinit_credits(struct super_block *sb, int type); 362 363 /* group extend. inode update and last group update. */ 364 #define OCFS2_GROUP_EXTEND_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1) 365 366 /* group add. inode update and the new group update. */ 367 #define OCFS2_GROUP_ADD_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1) 368 369 /* get one bit out of a suballocator: dinode + group descriptor + 370 * prev. group desc. if we relink. */ 371 #define OCFS2_SUBALLOC_ALLOC (3) 372 373 static inline int ocfs2_inline_to_extents_credits(struct super_block *sb) 374 { 375 return OCFS2_SUBALLOC_ALLOC + OCFS2_INODE_UPDATE_CREDITS + 376 ocfs2_quota_trans_credits(sb); 377 } 378 379 /* dinode + group descriptor update. We don't relink on free yet. */ 380 #define OCFS2_SUBALLOC_FREE (2) 381 382 #define OCFS2_TRUNCATE_LOG_UPDATE OCFS2_INODE_UPDATE_CREDITS 383 #define OCFS2_TRUNCATE_LOG_FLUSH_ONE_REC (OCFS2_SUBALLOC_FREE \ 384 + OCFS2_TRUNCATE_LOG_UPDATE) 385 386 static inline int ocfs2_remove_extent_credits(struct super_block *sb) 387 { 388 return OCFS2_TRUNCATE_LOG_UPDATE + OCFS2_INODE_UPDATE_CREDITS + 389 ocfs2_quota_trans_credits(sb); 390 } 391 392 /* data block for new dir/symlink, 2 for bitmap updates (bitmap fe + 393 * bitmap block for the new bit) dx_root update for free list */ 394 #define OCFS2_DIR_LINK_ADDITIONAL_CREDITS (1 + 2 + 1) 395 396 static inline int ocfs2_add_dir_index_credits(struct super_block *sb) 397 { 398 /* 1 block for index, 2 allocs (data, metadata), 1 clusters 399 * worth of blocks for initial extent. */ 400 return 1 + 2 * OCFS2_SUBALLOC_ALLOC + 401 ocfs2_clusters_to_blocks(sb, 1); 402 } 403 404 /* parent fe, parent block, new file entry, index leaf, inode alloc fe, inode 405 * alloc group descriptor + mkdir/symlink blocks + dir blocks + xattr 406 * blocks + quota update */ 407 static inline int ocfs2_mknod_credits(struct super_block *sb, int is_dir, 408 int xattr_credits) 409 { 410 int dir_credits = OCFS2_DIR_LINK_ADDITIONAL_CREDITS; 411 412 if (is_dir) 413 dir_credits += ocfs2_add_dir_index_credits(sb); 414 415 return 4 + OCFS2_SUBALLOC_ALLOC + dir_credits + xattr_credits + 416 ocfs2_quota_trans_credits(sb); 417 } 418 419 /* local alloc metadata change + main bitmap updates */ 420 #define OCFS2_WINDOW_MOVE_CREDITS (OCFS2_INODE_UPDATE_CREDITS \ 421 + OCFS2_SUBALLOC_ALLOC + OCFS2_SUBALLOC_FREE) 422 423 /* used when we don't need an allocation change for a dir extend. One 424 * for the dinode, one for the new block. */ 425 #define OCFS2_SIMPLE_DIR_EXTEND_CREDITS (2) 426 427 /* file update (nlink, etc) + directory mtime/ctime + dir entry block + quota 428 * update on dir + index leaf + dx root update for free list */ 429 static inline int ocfs2_link_credits(struct super_block *sb) 430 { 431 return 2*OCFS2_INODE_UPDATE_CREDITS + 3 + 432 ocfs2_quota_trans_credits(sb); 433 } 434 435 /* inode + dir inode (if we unlink a dir), + dir entry block + orphan 436 * dir inode link + dir inode index leaf + dir index root */ 437 static inline int ocfs2_unlink_credits(struct super_block *sb) 438 { 439 /* The quota update from ocfs2_link_credits is unused here... */ 440 return 2 * OCFS2_INODE_UPDATE_CREDITS + 3 + ocfs2_link_credits(sb); 441 } 442 443 /* dinode + orphan dir dinode + inode alloc dinode + orphan dir entry + 444 * inode alloc group descriptor + orphan dir index root + 445 * orphan dir index leaf */ 446 #define OCFS2_DELETE_INODE_CREDITS (3 * OCFS2_INODE_UPDATE_CREDITS + 4) 447 448 /* dinode update, old dir dinode update, new dir dinode update, old 449 * dir dir entry, new dir dir entry, dir entry update for renaming 450 * directory + target unlink + 3 x dir index leaves */ 451 static inline int ocfs2_rename_credits(struct super_block *sb) 452 { 453 return 3 * OCFS2_INODE_UPDATE_CREDITS + 6 + ocfs2_unlink_credits(sb); 454 } 455 456 /* global bitmap dinode, group desc., relinked group, 457 * suballocator dinode, group desc., relinked group, 458 * dinode, xattr block */ 459 #define OCFS2_XATTR_BLOCK_CREATE_CREDITS (OCFS2_SUBALLOC_ALLOC * 2 + \ 460 + OCFS2_INODE_UPDATE_CREDITS \ 461 + OCFS2_XATTR_BLOCK_UPDATE_CREDITS) 462 463 /* inode update, removal of dx root block from allocator */ 464 #define OCFS2_DX_ROOT_REMOVE_CREDITS (OCFS2_INODE_UPDATE_CREDITS + \ 465 OCFS2_SUBALLOC_FREE) 466 467 static inline int ocfs2_calc_dxi_expand_credits(struct super_block *sb) 468 { 469 int credits = 1 + OCFS2_SUBALLOC_ALLOC; 470 471 credits += ocfs2_clusters_to_blocks(sb, 1); 472 credits += ocfs2_quota_trans_credits(sb); 473 474 return credits; 475 } 476 477 /* 478 * Please note that the caller must make sure that root_el is the root 479 * of extent tree. So for an inode, it should be &fe->id2.i_list. Otherwise 480 * the result may be wrong. 481 */ 482 static inline int ocfs2_calc_extend_credits(struct super_block *sb, 483 struct ocfs2_extent_list *root_el, 484 u32 bits_wanted) 485 { 486 int bitmap_blocks, sysfile_bitmap_blocks, extent_blocks; 487 488 /* bitmap dinode, group desc. + relinked group. */ 489 bitmap_blocks = OCFS2_SUBALLOC_ALLOC; 490 491 /* we might need to shift tree depth so lets assume an 492 * absolute worst case of complete fragmentation. Even with 493 * that, we only need one update for the dinode, and then 494 * however many metadata chunks needed * a remaining suballoc 495 * alloc. */ 496 sysfile_bitmap_blocks = 1 + 497 (OCFS2_SUBALLOC_ALLOC - 1) * ocfs2_extend_meta_needed(root_el); 498 499 /* this does not include *new* metadata blocks, which are 500 * accounted for in sysfile_bitmap_blocks. root_el + 501 * prev. last_eb_blk + blocks along edge of tree. 502 * calc_symlink_credits passes because we just need 1 503 * credit for the dinode there. */ 504 extent_blocks = 1 + 1 + le16_to_cpu(root_el->l_tree_depth); 505 506 return bitmap_blocks + sysfile_bitmap_blocks + extent_blocks + 507 ocfs2_quota_trans_credits(sb); 508 } 509 510 static inline int ocfs2_calc_symlink_credits(struct super_block *sb) 511 { 512 int blocks = ocfs2_mknod_credits(sb, 0, 0); 513 514 /* links can be longer than one block so we may update many 515 * within our single allocated extent. */ 516 blocks += ocfs2_clusters_to_blocks(sb, 1); 517 518 return blocks + ocfs2_quota_trans_credits(sb); 519 } 520 521 static inline int ocfs2_calc_group_alloc_credits(struct super_block *sb, 522 unsigned int cpg) 523 { 524 int blocks; 525 int bitmap_blocks = OCFS2_SUBALLOC_ALLOC + 1; 526 /* parent inode update + new block group header + bitmap inode update 527 + bitmap blocks affected */ 528 blocks = 1 + 1 + 1 + bitmap_blocks; 529 return blocks; 530 } 531 532 static inline int ocfs2_calc_tree_trunc_credits(struct super_block *sb, 533 unsigned int clusters_to_del, 534 struct ocfs2_dinode *fe, 535 struct ocfs2_extent_list *last_el) 536 { 537 /* for dinode + all headers in this pass + update to next leaf */ 538 u16 next_free = le16_to_cpu(last_el->l_next_free_rec); 539 u16 tree_depth = le16_to_cpu(fe->id2.i_list.l_tree_depth); 540 int credits = 1 + tree_depth + 1; 541 int i; 542 543 i = next_free - 1; 544 BUG_ON(i < 0); 545 546 /* We may be deleting metadata blocks, so metadata alloc dinode + 547 one desc. block for each possible delete. */ 548 if (tree_depth && next_free == 1 && 549 ocfs2_rec_clusters(last_el, &last_el->l_recs[i]) == clusters_to_del) 550 credits += 1 + tree_depth; 551 552 /* update to the truncate log. */ 553 credits += OCFS2_TRUNCATE_LOG_UPDATE; 554 555 credits += ocfs2_quota_trans_credits(sb); 556 557 return credits; 558 } 559 560 static inline int ocfs2_jbd2_file_inode(handle_t *handle, struct inode *inode) 561 { 562 return jbd2_journal_file_inode(handle, &OCFS2_I(inode)->ip_jinode); 563 } 564 565 static inline int ocfs2_begin_ordered_truncate(struct inode *inode, 566 loff_t new_size) 567 { 568 return jbd2_journal_begin_ordered_truncate( 569 OCFS2_SB(inode->i_sb)->journal->j_journal, 570 &OCFS2_I(inode)->ip_jinode, 571 new_size); 572 } 573 574 #endif /* OCFS2_JOURNAL_H */ 575